From salt-and-pepper locks to a white mane, gray hair isn’t just for men in their 50s and 60s anymore. Film stars, athletes, television personalities, even President Obama, are all rocking gray hair–and some are welcoming it.

“I think it’s the measure of maturing and growing,” said Andy Cohen the host of Bravo’s “Watch What Happens Live.” The 42-year-old first noticed his transition from dark black to slate in his late 20s, when a few silver hairs started appearing around his temples. He never had the urge to dye it, and suggests that graying men regardless of their age should wear it with confidence.

“For me it’s just there, it’s natural, you have to let it be. It’s attractive if you are confident about it,” Cohen said.

In recent months many men have exposed their gray tresses, while others are eagerly awaiting its emergence, said Sean Flanigan, who has worked in the hair department on shows such as “Mad Men” and “Grey’s Anatomy,” which co-stars gray-streaked actor Eric Dane.

“Gray on men is quite stylish,” Flanigan said. “For Eric it makes him very handsome. Patrick Dempsey is hoping for some gray to come into his.”

For men and even some women, it’s inevitable that gray will sprout. Flanigan suggests wearing it with pride and concentrating on other things such as diet and exercise.

“It’s a badge of honor. Don’t worry about the hair. Focus on having a healthy, active lifestyle. The hair is just part of that whole package,” said Flanigan.

Proving experience and perseverance outweighs age, 41-year-old quarterback Brett Favre returned to the NFL in 2008 (he retired at the end of this past season). Unafraid to show his gray hair in a sport that’s fanatical about age, Favre posed for “Men’s Journal” in August, his hair just as prominent as the football he held.

“It’s the new generation, it’s more manly and masculine,” Gloria Casny said, speaking of Favre as well as some of her Hollywood clients such as 39-year-old Jon Hamm. “These guys have a whole different attitude. They’re open and casual.”

Casny has been a professional hair stylist for 30 years and is currently working on the film “Cowboys & Aliens” as well as “Mad Men.”

Even though perceptions on gray hair have changed, some men may still be embarrassed by going silver. For them, Casny recommends a blending product like Redken for Men Color Camo, “which will tone down the gray by blending it with other hair,” Casny said. It won’t completely remove it, but that’s not necessarily a bad thing.

“The bottom line,” Casny said, “is that chicks dig it.”

You can see photos of some celebrities with gray hair by clicking on the slideshow tab.